文献类型：期刊文献

英文题名：Effect of compression combined with steam treatment on the porosity, chemical compositon and cellulose crystalline structure of wood cell walls

作者：Yin, Jiangping[1] Yuan, Tongqi[2] Lu, Yun[1] Song, Kunlin[3] Li, Hanyin[4] Zhao, Guangjie[4] Yin, Yafang[1]

第一作者：Yin, Jiangping

通信作者：Yin, YF[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Dept Wood Anat & Utilizat, Beijing 100091, Peoples R China;[2]Beijing Forestry Univ, Beijing Key Lab Lignocellulos Chem, Beijing 100083, Peoples R China;[3]Louisiana State Univ, Sch Renewable Nat Resources, Baton Rouge, LA 70803 USA;[4]Beijing Forestry Univ, Coll Mat Sci & Technol, Beijing 100083, Peoples R China

年份：2017

卷号：155

起止页码：163-172

外文期刊名：CARBOHYDRATE POLYMERS

收录：;EI(收录号：20163502760021);Scopus(收录号：2-s2.0-84983504291);WOS:【SCI-EXPANDED(收录号:WOS:000386402600018)】；

基金：This work was supported financially by the Chinese National Natural Science Foundation (No. 31370559) and the Wallenberg Wood Science Center (WWSC) of the Royal Institute of Technology (KTH) of Sweden. The technical help from Dr. Toshiro Morooka of Research Institute for Sustainable Humanosphere, Kyoto University, Japan for the compression combined with steam treatment and the steam treatment, Prof. Lennart Salmon, Prof. Lars Berglund of KM and Dr. Juan Guo of Research Institute of Wood Industry, Chinese Academy of Forestry for the discussion of experimental design are gratefully acknowledged. The assistance with language editing done by Kevin Austin of BizTech English AB is also acknowledged.

语种：英文

外文关键词：Compression combined with steam treatment; Mesopores; Cellulose; Lignin; Cellulose crystalline structure

摘要：The changes of porosity, chemical composition and cellulose crystalline structure of Spruce (Picea abies Karst.) wood cell walls due to compression combined with steam treatment (CS-treatment) were investigated by nitrogen adsorption, confocal Raman microscopy (CRM) and X-ray diffraction (XRD), respectively. A number of slit-shaped mesopores with a diameter of 3.7 nm was formed for the CS-treated wood, and more mesopores were found in the steam-treated wood. CRM results revealed cellulose structure was affected by treatment and beta-aryl-ether links associated to guaiacyl units of lignin was depolymerized followed by re-condensation reactions. The crystallinity index (CrI) and crystallite thickness (D-200) of cellulose for CS-treated wood were largely increased due to crystallization in the semicrystalline region. Higher degree of increase in both Crl and D-200 was observed in both the earlywood and latewood of steam-treated wood, ascribing to the greater amount of mesopores in steam-treated wood than CS-treated wood. (C) 2016 Published by Elsevier Ltd.